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    • 5. 发明申请
    • TRANSURANIC MATERIAL PROCESSING
    • 透射材料加工
    • WO2013007989A1
    • 2013-01-17
    • PCT/GB2012/051586
    • 2012-07-06
    • CAMBRIDGE ENTERPRISE LIMITEDLINDLEY, Ben
    • LINDLEY, Ben
    • G21C1/04G21C1/08G21C3/42G21G1/00
    • G21C1/04G21C1/084G21C1/086G21C3/42G21C7/02G21G1/08Y02E30/31Y02E30/32Y02E30/38
    • A light water reactor (10) can be operated in accordance with the present disclosure, by initially loading the reactor (10) with a fuel (20) comprising a mixture of fertile Thorium and transuranic material, providing the light water reactor (10) with moderation sufficient that neutrons generated by the fuel (20) are operable to cause nuclear reaction of components of the transuranic material, and operating the reactor for a first fuel cycle. Then, the reactor (10) is loaded with a fuel (20) comprising further mixture of fertile Thorium and transuranic material alongside existing transuranic material in said fuel from said first fuel cycle with some or all Uranium-233 bred in said first fuel cycle, and operated for a further fuel cycle.
    • 轻水反应器(10)可以根据本公开操作,通过首先用包含可育的钍和超铀材料的混合物的燃料(20)装载反应器(10),向轻水反应器(10)提供 足以使得由燃料(20)产生的中子可操作地引起超铀材料的组分的核反应,以及操作反应器进行第一燃料循环。 然后,反应器(10)装有燃料(20),该燃料(20)包括与所述第一燃料循环的所述燃料中的现有超铀材料的再生混合物,所述燃料在所述第一燃料循环中繁殖出来的一些或全部铀-233, 并进行进一步的燃料循环。
    • 6. 发明申请
    • PASSIVE INHERENT REACTIVITY COEFFICIENT CONTROL IN NUCLEAR REACTORS
    • 核反应堆中被动固有反应系数的控制
    • WO2017184255A2
    • 2017-10-26
    • PCT/US2017/019780
    • 2017-02-27
    • OKLO, INC.
    • DEWITTE, JacobRICHARD, Joshua G.
    • G21C3/42G21C7/24
    • A nuclear reactor may comprise: fuel comprising or breeding plutonium-239; a neutron moderator, such as ZrHx, where x is about 1.6, YH 2, TiH 2 and/or ThH 2 , which behaves as an Einstein oscillator and as the temperature of the reactor increases the moderator increases the energy of thermal neutrons into the Pu-239 neutron absorption resonance; and a neutron absorbing element with strong neutron absorption around 0.3 eV added to one or more components of a reactor core of the nuclear reactor, wherein the neutron absorbing element is provided in an amount calculated to suppress, at any time during the life of the fuel, a reactivity gain with temperature due to the neutron moderator increasing the energy of thermal neutrons into the Pu-239 neutron absorption resonance.
    • 核反应堆可以包括:包含或繁殖钚-239的燃料; 中子慢化剂,例如ZrH x,其中x约为1.6,YH 2,TiH 2和/或ThH 2,其表现为 爱因斯坦振荡器,随着反应堆温度的升高,慢化剂将热中子的能量增加到Pu-239中子吸收共振中; 以及具有约0.3eV的强中子吸收的中子吸收元件被添加到所述核反应堆的反应堆堆芯的一个或多个部件,其中所述中子吸收元件以在所述燃料的寿命期间的任何时间 ,由于中子慢化剂增加了热中子的能量进入Pu-239中子吸收共振,反应性随温度增加。
    • 7. 发明申请
    • BRENNSTOFFPELLET FÜR EINEN KERNREAKTOR UND VERFAHREN ZU SEINER HERSTELLUNG
    • 燃料芯块用于生产核反应堆和过程
    • WO2004038729A1
    • 2004-05-06
    • PCT/EP2003/011594
    • 2003-10-20
    • FRAMATOME ANP GMBHDÖRR, WolfgangLANSMANN, Volker
    • DÖRR, WolfgangLANSMANN, Volker
    • G21C3/42
    • G21C3/00G21C3/62Y02E30/38
    • Die Erfindung betrifft ein Brennstoffpellet für einen Kernreaktor, mit einer Matrix aus einem oxidischen Kernbrennstoff und einer in oder zwischen den Brennstoffkörnern abgeschiedenen metallischen Phase, die bevorzugt radial zur Mantelfläche des Pellets hin ausgerichtet ist. Die Erfindung betrifft weiterhin ein Verfahren, bei dem a) Grünlinge hergestellt werden, die neben dem oxidischen Kernbrennstoff und gegebenenfalls weiteren Zusätzen ei­ne Vorstufe der metallischen Phase enthalten, welche einen unterhalb der Sintertemperatur liegenden Schmelzpunkt aufweist und die unter Sinterbedingungen in die metallische Phase umwandelbar ist, und b) die Grünlinge gesintert werden, wobei das Aufheizen der Grünlinge so schnell erfolgt, dass zumindest ein Teil der Vorstufe verflüssigt ist, bevor sie sich vollstän­dig in die metallische Phase umgewandelt hat.
    • 本发明涉及一种燃料芯块用于核反应堆,具有氧化核燃料的基质和沉积于或燃料颗粒金属相,其优选径向朝向定向颗粒的侧表面之间。 本发明还涉及其中一个)生片准备含有的方法中,除了该氧化物核燃料和任何另外的添加剂是具有低于熔点的烧结温度和烧结条件下转化成金属相的温度下的金属相的前体, 和b)压坯进行烧结,其中所述生坯的加热是如此之快,然后将其完全转变成金属相至少所述前体的一部分被液化。
    • 8. 发明申请
    • IMPROVEMENTS IN AND RELATING TO NUCLEAR FUEL AND ITS MANUFACTURE
    • 核燃料及其制造方面的改进和相关
    • WO01043142A2
    • 2001-06-14
    • PCT/GB2000/004641
    • 2000-12-05
    • G21C21/02G21C3/62G21C3/42
    • G21C3/623Y02E30/38
    • The invention provides an improved method of manufacturing fuel by blending fuel from different sources in a way which accounts for the isotopic variation in the fuel from different sources. In particular, the invention provides a method for producing nuclear fuel, the method comprising defining one or more reference composition for fuel to be produced; providing two or more amounts of feed fuel material from which to produce the fuel, defining the deviation of each of the amounts of feed fuel material from a reference composition; selecting and mixing masses of feed fuel material from two or more of the amounts of feed fuel material, the masses being selected to give a lower deviation between the mixed feed fuel material and the selected reference composition than between the feed fuel material amounts, and the selected reference composition, the deviation being defined by a function based on the isotopic composition of the feed fuel material amounts.
    • 本发明提供了一种通过混合来自不同来源的燃料以改善来自不同来源的燃料中的同位素变化的方式来制造燃料的改进方法。 特别地,本发明提供了一种生产核燃料的方法,该方法包括定义一种或多种待生产燃料的参考组合物; 提供两种或更多量的进料燃料材料,从其中产生燃料,限定每种进料燃料材料与参考组合物的偏差; 从两种或多种进料燃料材料中选择和混合进料燃料材料的质量,选择该质量以在混合进料燃料材料和所选择的参考组合物之间比在进料燃料材料量之间产生较低的偏差, 所选择的参考组合物,偏差由基于进料燃料材料的同位素组成的函数定义。
    • 10. 发明申请
    • NUCLEAR FUEL CONTAINING A NEUTRON ABSORBER MIXTURE
    • 含有中性吸收剂混合物的核燃料
    • WO2016128821A1
    • 2016-08-18
    • PCT/IB2016/000114
    • 2016-02-11
    • CANDU ENERGY INC.
    • HONG, In SeobDAHMANI, Mohamed
    • G21C3/42G21C3/328
    • G21C3/58G21C1/20G21C1/24G21C3/328G21C3/42G21C3/62G21Y2002/20G21Y2004/10Y02E30/38
    • Fuel bundles for nuclear reactors are provided, and can include a fuel element containing U-233, U-235, PU-239, and/or PU-241 fissile material, along with at least two neutron absorbers consisting of Gd, Dy, Hf, Er, and/or Eu, wherein the fissile material(s) and the at least two neutron absorbers are homogeneously mixed in the fuel element. Fuel bundles for nuclear reactors are also provided that include fuel elements having inner elements and outer elements, wherein at least one of the inner elements includes a homogeneous mixture of a fissile material and at least two neutron absorbers. Fuel elements for nuclear reactors are also provided, and can include U-233, U-235, PU-239, and/or PU-241 fissile material, along with at least two neutron absorbers consisting of Gd, Dy, Hf, Er, and/or Eu, wherein the fissile material(s) and the at least two neutron absorbers are homogeneously mixed in the fuel element.
    • 提供用于核反应堆的燃料束,并且可以包括含有U-233,U-235,PU-239和/或PU-241裂变材料的燃料元件,以及由Gd,Dy,Hf组成的至少两个中子吸收剂 ,Er和/或Eu,其中所述易裂变材料和所述至少两个中子吸收剂在所述燃料元件中均匀混合。 还提供了用于核反应堆的燃料束,其包括具有内部元件和外部元件的燃料元件,其中至少一个内部元件包括易裂变材料和至少两个中子吸收体的均匀混合物。 还提供用于核反应堆的燃料元件,并且可以包括U-233,U-235,PU-239和/或PU-241裂变材料,以及至少两个由Gd,Dy,Hf,Er组成的中子吸收剂, 和/或Eu,其中所述易裂变材料和所述至少两个中子吸收剂在所述燃料元件中均匀混合。